1 . 他被他之前落在地上的一块石头绊倒了。
He ________ a stone which he left lying on the ground.

2 . It is reported that living spaces for wildlife ________ ________ ________ due to the cutting of trees.
据报道，由于砍伐树木，野生动物的生存空间正在减少。

3 . Although many measures ________, the world's economy is still going down.

A．were taken

B．are taken

C．will be taken

D．have been taken

4 . 根据句意，选择单词或短语并以其适当形式填空。

extreme        benefit        respond        frequently        perceive        generate            relief

1. She didn't expect to receive such a warm ________ when she posted her own story on the Internet.
2. Reading more and listening more at the same time are ________ important in English learning.
3. It is known to us that having a good parent-child relationship is ________ to physical and mental growth of a child.
4. His anxiety was greatly ________ when the police came to his rescue.
5. Food safety incidents have occurred one after another recently, ________ greater concern about food safety.

5 . The questions raised by the math teacher were so difficult that I ________ on the first one. (stick)
数学老师提的问题太难，第一个我就答不上来。

6 . Chemistry can be d ________ as a subject in which chemical changes in matters are dealt with. （根据首字母单词拼写）

7 . 如今人们正在筹款以阻止濒危物种灭绝。
Nowadays the funds ________ to prevent the endangered species from ________.

8 . 人们建议会议推迟到下周。（suggest）
________________ till next week.

9 . 选词填空：divide/separate
1. They got ________ two years ago, and now they are looking forward to seeing each other again.
2. The physical benefits of exercise can be ________ into three types.

10 . Hangzhou is really an ________ place. Especially, the famous West Lake always makes a deep ________ on the visitors. I was strongly ________ by its beauty the first time I saw it. (impress) (所给词的适当形式填空)